CN114181611B - Super-water-resistant self-drying glass heat insulation coating and preparation method thereof - Google Patents
Super-water-resistant self-drying glass heat insulation coating and preparation method thereof Download PDFInfo
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- CN114181611B CN114181611B CN202111668895.2A CN202111668895A CN114181611B CN 114181611 B CN114181611 B CN 114181611B CN 202111668895 A CN202111668895 A CN 202111668895A CN 114181611 B CN114181611 B CN 114181611B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000011521 glass Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- 239000011248 coating agent Substances 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 238000001035 drying Methods 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 title description 6
- 239000003973 paint Substances 0.000 claims abstract description 81
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 241000533950 Leucojum Species 0.000 claims abstract description 26
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000009709 daotan Substances 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 19
- 229920001519 homopolymer Polymers 0.000 claims abstract description 19
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 19
- 239000012752 auxiliary agent Substances 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 35
- 239000013638 trimer Substances 0.000 claims description 28
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 16
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000008213 purified water Substances 0.000 claims description 15
- 239000000080 wetting agent Substances 0.000 claims description 14
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 13
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical group CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 3
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 3
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims 6
- 239000000243 solution Substances 0.000 claims 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 3
- 239000011550 stock solution Substances 0.000 claims 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims 2
- 239000008367 deionised water Substances 0.000 claims 2
- 229910021641 deionized water Inorganic materials 0.000 claims 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims 1
- 241000530268 Lycaena heteronea Species 0.000 claims 1
- 235000011114 ammonium hydroxide Nutrition 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 claims 1
- 238000003760 magnetic stirring Methods 0.000 claims 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000004925 Acrylic resin Substances 0.000 abstract description 25
- 229920000178 Acrylic resin Polymers 0.000 abstract description 25
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- -1 glycidoxy Chemical group 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005829 trimerization reaction Methods 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/69—Polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Abstract
The invention provides a super-water-resistant self-drying glass heat-insulating coating and a preparation method thereof, wherein the coating comprises aqueous two-component hydroxyl acrylic resin I, ALLNEX aqueous resin DAOTAN VTW1225/40WA, polybutadiene homopolymer and snowflake copper sulfide nano slurry; the hydroxyl value of the aqueous two-component hydroxyl acrylic resin I is larger than that of ALLNEX (high and new) aqueous resin DAOTAN VTW1225/40WA, and under the condition that the thickness of a paint film is only 10-20 microns, the aqueous two-component hydroxyl acrylic resin I can be fully wetted with a glass substrate to form a pinhole-free compact paint film, and the compatibility of the ALLNEX (high and new) aqueous resin DAOTAN VTW1225/40WA and the aqueous two-component hydroxyl acrylic resin I is good; the wettability of the paint is good; the paint film is not easy to generate tiny pinholes, and a compact paint film is formed, so that the water resistance of the paint film is improved; by adding polybutadiene homopolymer, more hydrogen bonds are introduced into the paint, so that the viscosity of the paint is increased; the adhesive force of the paint film on the glass substrate is enhanced, so that the water resistance of the paint film is further improved.
Description
Technical Field
The invention relates to a coating technology and a using method, in particular to a super-water-resistant self-drying glass heat-insulating coating and a preparation method thereof.
Background
The water resistance (40 ℃) of the self-drying (single-component or double-component) water-based glass heat-insulating paint in the current market can only reach 24 hours, so that the service life of the glass heat-insulating paint is relatively short, a paint film can fall off and crack after being sprayed by wind and rain for 3-5 years, old people must be removed again for renovation, the material cost is increased, the construction cost is greatly increased, and meanwhile, a lot of troubles are added for users.
In China application number 202110838021.0 and publication date 2021.10.15, a water-based polyurethane coating and a preparation method and application thereof are disclosed; the coating comprises the following preparation raw materials: a component A and a component B; the component A comprises the following preparation raw materials: high hydroxyl acrylic resin, low hydroxyl acrylic resin, high boiling point solvent and low boiling point solvent; the component B comprises the following preparation raw materials: an aqueous isocyanate. However, the adhesive force of the paint is poor, and a paint film formed by the paint is easy to separate from a substrate; thus the water resistance of the paint film is poor.
Disclosure of Invention
The invention provides a super-water-resistant self-drying glass heat-insulating coating and a preparation method thereof; by adding polybutadiene homopolymer, more hydrogen bonds are introduced into the structure of the paint, so that the cohesiveness of a paint film and a glass substrate is improved, the adhesive force of the paint film on the glass substrate is enhanced, and the water resistance of the paint film is further improved.
In order to achieve the above purpose, the technical scheme of the invention is as follows: an ultra-water-resistant self-drying glass heat-insulating coating comprises a component A and a component B;
the component A comprises the following preparation raw materials in percentage by weight:
ALLNEX (Zhan Xin) aqueous resin MACRYNAL VSM6299w/42WA with the hydroxyl content of 4.1 percent, 25.5 to 34 percent;
ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA with 1.4 percent of hydroxyl group content, 8.2-15.8 percent;
polybutadiene homopolymer, 3.8% -5.9%;
snowflake copper sulfide nano slurry, 22.5% -26.3%;
defoaming agent, 04% -0.5%;
0.9% -1.2% of a substrate wetting agent;
0.2% -0.25% of leveling agent;
0.07% -0.13% of pH regulator;
film forming additive 4.2-5.2%
Silane coupling agent, 1.2% -2.1%;
0.1 to 0.25 percent of anti-settling auxiliary agent;
purified water, 1.77% -5.68%;
the component B comprises the following preparation raw materials in percentage by weight:
10.2% -11.6% of hexamethylene diisocyanate trimer;
4% -5.6% of isophorone diisocyanate trimer;
0.5 to 2.1 percent of film forming auxiliary agent.
The preparation method of the super-water-resistant self-drying glass heat-insulating coating comprises the following steps: comprises a preparation method of a component A and a preparation method of a component B;
the preparation method of the component A comprises the following steps:
s1, sequentially adding ALLNEX (Zhan Xin) aqueous resin MACRYNAL VSM6299w/42WA, ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA, a defoaming agent, a substrate wetting agent and part of purified water into a stirring cylinder, and stirring for 5-10 minutes at a rotating speed of 400-800 r/min;
s2, adding a pH regulator, regulating the pH to 7.5-8.5, and stirring for 10-15 minutes under the condition of rotating speed of 400-800 r/min;
s3, sequentially adding snowflake copper sulfide nano slurry, an anti-settling auxiliary agent, a film forming auxiliary agent and a silane coupling agent, and stirring and dispersing for 20-30 minutes under the rotation speed of 600-1000 r/min;
s4, adding a leveling agent, and stirring and dispersing for 5-10 minutes under the rotation speed condition of 400-600 r/min;
s5, adding the rest purified water, adjusting the viscosity, and stirring for 10-15 minutes under the rotation speed condition of 400-600 r/min;
the preparation method of the component B comprises the following steps:
z1. hexamethylene diisocyanate trimer, isophorone diisocyanate trimer and film forming auxiliary agent are sequentially added into a stirring cylinder, and stirring is carried out for 5-10 minutes under the rotation speed condition of 400-800 r/min.
The application method of the super-water-resistant self-drying glass heat-insulating paint comprises the following steps: the component A comprises the following components in parts by weight: and the component B comprises the following components: water at 5:1: and (3) uniformly stirring the materials in a proportion of 0.1-0.3, then filtering the materials with 200 meshes, standing the materials for 5-10 minutes, spraying or brushing the materials on a glass substrate, and then waiting for the natural drying of the coating.
Further, the aqueous two-component hydroxy acrylic resin one is ALLNEX (Zhan Xin) aqueous resin MACRYNAL VSM6299w/42WA, and the solid content is 42+1% and the pH value is 7.0-8.5.
Further, the DAOTAN VTW1225/40WA is ALLNEX (Zhanxin) aqueous resin DAOTAN VTW1225/40WA with a solid content of 40+1% and the pH value is 6.7-7.7.
Further, the polybutadiene homopolymer is a hydroxyl-terminated polybutadiene resin PolybdR 450VOI.
Further, the defoamer is TEGO830, TEGO822, or BYK024.
Further, the substrate wetting agent is TEGO4200, TEGO4100, BYK192 or BYK191; the leveling agent is TEGO450, TEGO410 or BYK333; the film forming auxiliary agent is DPNB, PNB, PGDA, DPM, PM or PMA.
Further, the pH regulator is 2-amino-2-methyl-1-propanol, and the model is AMP95 or PH-1355 auxiliary agent; the silane coupling agent is a Michaelco COATOSIL MP200 silane coupling agent; the anti-settling auxiliary agent is a polyether polyurethane association type rheological auxiliary agent.
Further, the hexamethylene diisocyanate trimer (HDI trimer) is TOLONATE HDT, TOLONATE HDT-90 or TOLONATE HDT-LV2; the isophorone diisocyanate trimer (IPDI trimer) is TOLONATE XFD 90B.
The paint is coated on a glass substrate to form a paint film; the water-based two-component hydroxy acrylic resin with the hydroxyl content of 4.1 percent has quick development of hardness at room temperature, long open period and high hardness, and can fully react with isocyanate trimerization; under the condition that the thickness of a paint film is only 10-20 microns, the water-based bi-component hydroxy acrylic resin can be fully wetted with a glass substrate, and bubbles generated by the reaction can be released before the wet film is completely dried, so that a pinhole-free compact paint film is formed, and the water resistance of the paint film is enhanced; the ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA with the hydroxyl content of 1.4 percent has good compatibility with aqueous two-component hydroxy acrylic resin; the wettability of the paint is good; therefore, the generation of bubbles due to poor compatibility can not occur, so that tiny pinholes are not easy to occur in the paint film, a compact paint film is formed, and the water resistance of the paint film is improved. By adding polybutadiene homopolymer, more hydrogen bonds are introduced into the paint, so that the viscosity of the paint is increased; so as to improve the cohesiveness of the paint film and the glass substrate, and strengthen the adhesive force of the paint film on the glass substrate, thereby further improving the water resistance of the paint film. By adding snowflake copper sulfide nano slurry, the heat insulation function of the paint is fully exerted under the condition that the thickness of a paint film is only 10-20 microns, so that the transparency of the paint is more than or equal to 70%. The silane coupling agent contains reactive glycidoxy and methoxy groups and is used for improving the adhesiveness of organic resin to the surface of inorganic matters, so that the adhesiveness of aqueous two-component hydroxyl acrylic resin I and ALLNEX aqueous resin (Zhan Xin) DAOTAN VTW1225/40WA to the surface of inorganic matters is improved; the adhesive force of the paint film on the glass substrate is enhanced, so that the water resistance of the paint film is further improved.
The preparation method of the invention comprises the steps of firstly stirring and mixing aqueous two-component hydroxyl acrylic resin I and ALLNEX aqueous resin DAOTAN VTW1225/40 WA; adding a silane coupling agent, wherein the adhesive property of the aqueous two-component hydroxyl acrylic resin I and ALLNEX aqueous resin DAOTAN VTW1225/40WA to the surface of an inorganic substance; adding snowflake copper sulfide nano slurry to ensure that the transparency of the paint is more than or equal to 70 percent; meanwhile, the paint has a heat insulation effect; then adding polybutadiene homopolymer to regulate and introduce hydrogen bonds to increase the viscosity of the coating; the adhesive force of the paint is enhanced; the paint film formed by coating the paint on the glass substrate has good water resistance.
According to the application method, the paint is coated on a glass substrate, and a paint film with the visible light transmittance higher than 70% and the infrared radiation reflectance higher than 90% is formed on the glass substrate; meanwhile, snowflake copper sulfide nano slurry is added; the ultraviolet shielding rate of the paint film is more than 95%, and the temperature of 5-10 ℃ can be reduced.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
A super-water-resistant self-drying glass heat-insulating coating comprises a component A and a component B. The component A is main paint; the component B is a curing agent. The component A comprises aqueous two-component hydroxyl acrylic resin I with the hydroxyl content of 4.1 percent, ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA with the hydroxyl content of 1.4 percent, polybutadiene homopolymer, snowflake copper sulfide nano slurry, defoamer, substrate wetting agent, flatting agent, pH regulator, film forming auxiliary agent, silane coupling agent, anti-settling auxiliary agent and purified water. The component B comprises hexamethylene diisocyanate trimer, isophorone diisocyanate trimer and a film forming auxiliary agent.
The first aqueous two-component hydroxy acrylic resin is ALLNEX aqueous treeFat MACRYNAL VSM6299w/42WA, solids content 42+1%, hydroxyl content 4.1% and pH 7.0-8.5.
The ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA has a solid content of 40+1%, hydroxyl content 1.4% and pH value 6.7-7.7.
The polybutadiene homopolymer is a hydroxyl-terminated polybutadiene resin PolybdR 450VOI.
The snowflake copper sulfide nano slurry is in China application number 201810115486.1; patent document publication No. 2018.7.24 discloses: snowflake copper sulfide nano slurry, water-based transparent heat-insulating paint based on copper sulfide nano snowflakes, and preparation method and use method thereof; the components of snowflake copper sulfide nano slurry and the preparation method are disclosed; and are not described in any detail herein.
The defoamer is TEGO830, TEGO822, or BYK024.
The substrate wetting agent is TEGO4200, TEGO4100, BYK192 or BYK191.
The leveling agent is TEGO450, TEGO410 or BYK333.
The PH regulator is 2-amino-2-methyl-1-propanol, and the model is AMP95 or PH-1355 auxiliary agent.
The film forming auxiliary agent is DPNB, PNB, PGDA, DPM, PM or PMA.
The silane coupling agent is a Michaelco COATOSIL MP200 silane coupling agent.
The anti-settling auxiliary agent is a polyether polyurethane association type rheological auxiliary agent; in particular to a Qingming-Style RHEOLATE 299.
The hexamethylene diisocyanate trimer (HDI trimer) is TOLONATE HDT, TOLONATE HDT-90 or TOLONATE HDT-LV 2.
The isophorone diisocyanate trimer (IPDI trimer) is TOLONATE XFD 90B.
Embodiment one.
The component A comprises the following preparation raw materials in percentage by weight:
32.5% of aqueous two-component hydroxy acrylic resin I.
ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA,9%.
Polybutadiene homopolymer, 4%.
Snowflake copper sulfide nano slurry; 24.9%.
0.4% of defoaming agent.
1% of a substrate wetting agent.
0.25% of leveling agent.
pH regulator, 0.08%.
5% of film forming auxiliary agent.
1.5% of silane coupling agent.
0.2 percent of anti-settling auxiliary agent.
Purified water, 4.17%.
The component B comprises the following preparation raw materials in percentage by weight:
10.9% of hexamethylene diisocyanate trimer.
Isophorone diisocyanate trimer, 4%.
2.1% of film forming auxiliary agent.
Embodiment two.
The component A comprises the following preparation raw materials in percentage by weight:
29.5 percent of water-based two-component hydroxy acrylic resin I.
ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA,13.6%.
Polybutadiene homopolymer, 3.8%.
Snowflake copper sulfide nano slurry; 22.5%.
0.4% of defoaming agent.
1% of a substrate wetting agent.
0.2% of leveling agent.
0.07% of pH regulator.
4.5% of film forming auxiliary agent.
1.5% of silane coupling agent.
0.25 percent of anti-settling auxiliary agent.
Purified water, 5.68%.
The component B comprises the following preparation raw materials in percentage by weight:
hexamethylene diisocyanate trimer, 11.2%.
Isophorone diisocyanate trimer, 4.3%.
1.5% of film forming auxiliary agent.
Embodiment three.
The component A comprises the following preparation raw materials in percentage by weight:
25.5% of aqueous two-component hydroxy acrylic resin I.
ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA,15.8%.
Polybutadiene homopolymer, 5.9%.
Snowflake copper sulfide nano slurry; 23.8%.
0.5% of defoaming agent.
1.2% of a substrate wetting agent.
0.2% of leveling agent.
0.1% of pH regulator.
4.2% of film forming auxiliary agent.
2.1% of silane coupling agent.
0.2 percent of anti-settling auxiliary agent.
Purified water, 3.5%.
The component B comprises the following preparation raw materials in percentage by weight:
10.2% of hexamethylene diisocyanate trimer.
Isophorone diisocyanate trimer, 5.6%.
1.2% of film forming auxiliary agent.
Example four.
The component A comprises the following preparation raw materials in percentage by weight:
34% of aqueous two-component hydroxy acrylic resin I.
ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA,8.2%.
Polybutadiene homopolymer, 4.5%.
Snowflake copper sulfide nano slurry; 26.3%.
0.5% of defoaming agent.
0.9% of a substrate wetting agent.
0.2% of leveling agent.
0.13% of pH regulator.
5.2% of film forming auxiliary agent.
1.2% of silane coupling agent.
0.1 percent of anti-settling auxiliary agent.
Purified water, 1.77%.
The component B comprises the following preparation raw materials in percentage by weight:
hexamethylene diisocyanate trimer, 11.6%.
Isophorone diisocyanate trimer, 4.9%.
0.5% of film forming auxiliary agent.
Table 1 is a graph comparing the ratios of the respective raw materials in the first, second, third and fourth examples.
TABLE 1
Table 2 is a comparative graph of test data for example one, example two, example three, and example four.
TABLE 2
The paint is coated on a glass substrate to form a paint film; the water-based two-component hydroxy acrylic resin with the hydroxyl content of 4.1 percent has quick development of hardness at room temperature, long open period and high hardness, and can fully react with isocyanate trimerization; under the condition that the thickness of a paint film is only 10-20 microns, the water-based bi-component hydroxy acrylic resin can be fully wetted with a glass substrate, and bubbles generated by the reaction can be released before the wet film is completely dried, so that a pinhole-free compact paint film is formed, and the water resistance of the paint film is enhanced; the ALLNEX (Zhan Xin) aqueous resin DAOTAN VTW1225/40WA with the hydroxyl content of 1.4 percent has good compatibility with aqueous two-component hydroxy acrylic resin; the wettability of the paint is good; therefore, the generation of bubbles due to poor compatibility can not occur, so that tiny pinholes are not easy to occur in the paint film, a compact paint film is formed, and the water resistance of the paint film is improved. By adding polybutadiene homopolymer, more hydrogen bonds are introduced into the paint, so that the viscosity of the paint is increased; so as to improve the cohesiveness of the paint film and the glass substrate, and strengthen the adhesive force of the paint film on the glass substrate, thereby further improving the water resistance of the paint film. By adding snowflake copper sulfide nano slurry, the heat insulation function of the paint is fully exerted under the condition that the thickness of a paint film is only 10-20 microns, so that the transparency of the paint is more than or equal to 70%.
A preparation method of super-water-resistant self-drying glass heat-insulating paint comprises a preparation method of a component A and a preparation method of a component B.
The preparation method of the component A comprises the following steps:
s1, sequentially adding aqueous two-component hydroxyl acrylic resin I, ALLNEX aqueous resin DAOTAN VTW1225/40WA, a defoaming agent, a base material wetting agent and part of purified water into a stirring cylinder, and stirring for 5-10 minutes at a rotating speed of 400-800 r/min.
S2, adding a pH regulator, regulating the pH to 7.5-8.5, and stirring for 10-15 minutes under the condition of rotating speed of 400-800 r/min.
S3, sequentially adding snowflake copper sulfide nano slurry, an anti-settling auxiliary agent, a film forming auxiliary agent and a silane coupling agent, and stirring and dispersing for 20-30 minutes under the rotating speed of 600-1000 r/min.
S4, adding a leveling agent, and stirring and dispersing for 5-10 minutes under the rotating speed condition of 400-600 r/min.
S5, adding the rest purified water, adjusting the viscosity, and stirring for 10-15 minutes under the rotating speed condition of 400-600 r/min.
The preparation method of the component B comprises the following steps:
z1. hexamethylene diisocyanate trimer, isophorone diisocyanate trimer and film forming auxiliary agent are sequentially added into a stirring cylinder, and stirring is carried out for 5-10 minutes under the rotation speed condition of 400-800 r/min.
The method comprises the steps of firstly stirring and mixing aqueous two-component hydroxyl acrylic resin I and ALLNEX aqueous resin DAOTAN VTW1225/40 WA; adding a silane coupling agent, wherein the adhesive property of the aqueous two-component hydroxyl acrylic resin I and ALLNEX aqueous resin (Zhanxin) DAOTAN VTW1225/40WA to the surface of an inorganic substance; adding snowflake copper sulfide nano slurry to ensure that the transparency of the paint is more than or equal to 70 percent; meanwhile, the paint has a heat insulation effect; then adding polybutadiene homopolymer to regulate and introduce hydrogen bonds to increase the viscosity of the coating; the adhesive force of the paint is enhanced; the paint film formed by coating the paint on the glass substrate has good water resistance.
A method for using super-water-resistant self-drying glass heat-insulating paint; the component A comprises the following components in parts by weight: and the component B comprises the following components: water at 5:1: and (3) uniformly stirring the materials in a proportion of 0.1-0.3, then filtering the materials with 200 meshes, standing the materials for 5-10 minutes, spraying or brushing the materials on a glass substrate, and then waiting for the natural drying of the coating.
The method comprises the steps of coating the paint on a glass substrate to form a paint film with the transmittance of visible light higher than 70% and the reflectance of infrared radiation higher than 90%; meanwhile, snowflake copper sulfide nano slurry is added; the ultraviolet shielding rate of the paint film is more than 95%, and the temperature of 5-10 ℃ can be reduced.
Claims (6)
1. A super-water-resistant self-drying glass heat-insulating coating is characterized in that: comprises a component A and a component B;
the component A comprises the following preparation raw materials in percentage by weight:
ALLNEX aqueous resin MACRYNAL VSM6299w/42WA with hydroxyl content of 4.1 percent, 25.5 to 34 percent;
ALLNEX aqueous resin DAOTAN VTW1225/40WA with hydroxyl content of 1.4 percent, 8.2-15.8 percent;
polybutadiene homopolymer, 3.8% -5.9%;
snowflake copper sulfide nano slurry, 22.5% -26.3%;
defoaming agent, 04% -0.5%;
0.9% -1.2% of a substrate wetting agent;
0.2% -0.25% of leveling agent;
0.07% -0.13% of pH regulator;
film forming additive 4.2-5.2%
Silane coupling agent, 1.2% -2.1%;
0.1 to 0.25 percent of anti-settling auxiliary agent;
purified water, 1.77% -5.68%;
the component B comprises the following preparation raw materials in percentage by weight:
10.2% -11.6% of hexamethylene diisocyanate trimer;
4% -5.6% of isophorone diisocyanate trimer;
0.5% -2.1% of film forming auxiliary agent;
snowflake copper sulfide nano slurry consists of the following components in percentage by weight: 55% -65% of copper sulfide nanometer snowflake stock solution; ethanol 15% -25%; white water prevention, 17% -28%; the copper sulfide nanometer snowflake stock solution is prepared by the following steps:
a) Adding 0.1% -1.7% of CuCl2.2H2O into a round-bottom flask, adding 48% -57% of deionized water into the round-bottom flask, and adding 0.9% -2% of polyvinylpyrrolidone under magnetic stirring to form light blue copper chloride solution;
b) Weighing 0.1% -2% of thiourea, adding 34% -48.6% of deionized water, and uniformly mixing to form thiourea solution;
c) Dropwise adding the thiourea solution into the prepared copper chloride solution, magnetically stirring at normal temperature, and adding 2% -4% ammonia water into the solution; condensing and refluxing in an oil bath at 85-95 ℃ for 2.5-3.5 hours;
d) Cooling the round bottom flask to room temperature to obtain copper sulfide nanometer snowflake stock solution; the percentages are weight percentages;
the thickness of a paint film formed by the paint after the paint is coated on a glass substrate is 10-20 micrometers; the polybutadiene homopolymer is a hydroxyl-terminated polybutadiene resin PolybdR 450VOI;
the preparation method of the component A comprises the following steps:
s1, sequentially adding ALLNEX aqueous resin MACRYNAL VSM6299w/42WA, ALLNEX aqueous resin DAOTAN VTW1225/40WA, a defoaming agent, a base material wetting agent and part of purified water into a stirring cylinder, and stirring for 5-10 minutes at a rotating speed of 400-800 r/min; s2, adding a pH regulator, regulating the pH to 7.5-8.5, and stirring for 10-15 minutes under the condition of rotating speed of 400-800 r/min; s3, sequentially adding snowflake copper sulfide nano slurry, an anti-settling auxiliary agent, a film forming auxiliary agent and a silane coupling agent, and stirring and dispersing for 20-30 minutes under the rotation speed of 600-1000 r/min; adding polybutadiene homopolymer; s4, adding a leveling agent, and stirring and dispersing for 5-10 minutes under the rotation speed condition of 400-600 r/min; s5, adding the rest purified water, adjusting the viscosity, and stirring for 10-15 minutes under the rotating speed condition of 400-600 r/min.
2. The super water-resistant self-drying glass heat-insulating coating according to claim 1, wherein the coating is characterized in that: the defoamer is TEGO830, TEGO822, or BYK024.
3. The super water-resistant self-drying glass heat-insulating coating according to claim 1, wherein the coating is characterized in that: the substrate wetting agent is TEGO4200, TEGO4100, BYK192 or BYK191; the leveling agent is TEGO450, TEGO410 or BYK333; the film forming auxiliary agent is DPNB, PNB, PGDA, DPM, PM or PMA.
4. The super water-resistant self-drying glass heat-insulating coating according to claim 1, wherein the coating is characterized in that: the pH regulator is 2-amino-2-methyl-1-propanol, and the model is AMP95 or PH-1355 auxiliary agent; the silane coupling agent is a Michaelco COATOSIL MP200 silane coupling agent; the anti-settling auxiliary agent is a polyether polyurethane association type rheological auxiliary agent.
5. The super water-resistant self-drying glass heat-insulating coating according to claim 1, wherein the coating is characterized in that: the hexamethylene diisocyanate trimer is TOLONATE HDT, TOLONATE HDT-90 or TOLONATE HDT-LV2; the isophorone diisocyanate trimer is TOLONATE XFD 90B.
6. The method for preparing the super water-resistant self-drying glass heat-insulating coating according to any one of claims 1 to 5, which is characterized by comprising the following steps: comprises a preparation method of a component A and a preparation method of a component B;
the preparation method of the component A comprises the following steps:
s1, sequentially adding ALLNEX aqueous resin MACRYNAL VSM6299w/42WA, ALLNEX aqueous resin DAOTAN VTW1225/40WA, a defoaming agent, a base material wetting agent and part of purified water into a stirring cylinder, and stirring for 5-10 minutes at a rotating speed of 400-800 r/min;
s2, adding a pH regulator, regulating the pH to 7.5-8.5, and stirring for 10-15 minutes under the condition of rotating speed of 400-800 r/min;
s3, sequentially adding snowflake copper sulfide nano slurry, an anti-settling auxiliary agent, a film forming auxiliary agent and a silane coupling agent, and stirring and dispersing for 20-30 minutes under the rotation speed of 600-1000 r/min; adding polybutadiene homopolymer;
s4, adding a leveling agent, and stirring and dispersing for 5-10 minutes under the rotation speed condition of 400-600 r/min;
s5, adding the rest purified water, adjusting the viscosity, and stirring for 10-15 minutes under the rotation speed condition of 400-600 r/min;
the preparation method of the component B comprises the following steps:
z1. hexamethylene diisocyanate trimer, isophorone diisocyanate trimer and film forming auxiliary agent are sequentially added into a stirring cylinder, and stirring is carried out for 5-10 minutes under the rotation speed condition of 400-800 r/min.
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